Check out what the survey instrument requires the interviewer to do when someone says "Congregationalist"; obviously the survey is designed to catch various types of congregationalists; but there's nothing like that for UUs.

In a second, even more provocative post, Tom argues that true believers in "congregational polity" — which used to mean the ecclesiastical traditionalists — seem to have carried the day in the long-running UU quarrel between denominationalists and congregationalists.